US316820A - s pessenger - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. S. PESSENGER.

MACHINE ION SETTING SPRINGS.

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MACHINE POR SETTING SPRINGS.

No. 316,820. Patented Apr-l 28, -1885.v

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JOHN s PEssENGEE, OE, BROOKLYN, NEW YORK.

MACHINE FOR SETTING SPRINGS.

SPECIFICATION forming part of Letters Patent No. 316.820, dated April 28, 1885.

Application filed January 20, i885. (No model.)

To all whom it may concern:

Be it known thatl, JOHN S. PEssENGER, of the city of Brooklyn,in the county of Kings and State of N ew York, have invented a new and Improved Machine for Fitting Elliptic Springs, of which'the following specification is a full, clear, and exact description.

This invention relates to that class of machines which setor fit elliptic springs-that is to say, which give the requisite curvature to the leaves.

More particularly does my invention relate to machines made with an adjustable bed reciprocating beneath a series of hammers or Weights which are displaced by the upward motion of said bed. Such a machine is desgribed in Patent No. 166,918, of August 24, l 75.

Now, my invention consists,- principally, in the construction of the bed or former, by which I am enabled to readily adjust the saine to any contour which may be desired. To this effect the former is composed of a series of vertical pieces or fingers, which are held against an anvil-block by an eccentric lever.

The invention also consists in the various elements of construction hereinafter more fully pointed out.

In the accompanying sheets of drawings, Figure l is a front elevation of my improved spring-setting machine. Fig. 2 is a vertical transverse section on the line x x, Fig. l; Fig. 3, a horizontal section on the line y y, Fig. l; Fig. 4, a vertical transverse section on the line z z, Fig. 3. Figs. 5, 6, 7, andS are detail views of the adjustable fingers and their attachments.v

The letters A A represent the two uprights of the machine, connvctedby suitable crosspieces. These uprights are grooved on their inner faces to form vertical ways for the bed or former, Fig. 3. This former consists, essentially, of an anvil-block, a, fitting with its two ends into said grooves and made preferably-with a smooth, front, flat top and enlarged base, as shown in Fig. 4.

b is the piston of a hydraulic or other engine or other motor, which is connected to the anvil-block and serves to raise and lower the same.

c c are a series of iingers placed side by side construction: The shank of each finger c is slotted longitudinally, and through this slot pass two screw-bolts, d e, tapped into the anvil-block a. The bolt d is vprovided at its front with a head, f, while the bolt c is provided with an eye to receive a pin that connects the bolt with an eccentric lever, g, Figs.

4 and'5. The rear end of the bolt c is encircled by ajam-nut.

In order tovadj ust anger c, the bolt d is first loosened and the lever g swung up. This releases the nger, and the same is moved up or down the desired distance. Then the lever g is swung down, and the finger isthus rapidly locked into position. Finally the bolt d is tightened up.

Vashers (shown in Fig. 4) may be interposed between the front of the iingers c and the heads fand lever g.

` 7i, Figs. 7 and 8, represents a shoe with a concave or other top, and with a bottom corresponding to the top of fingers c. This shoe is provided with a downwardly-extending pin fitting into a hole in the top of iinger c, so as to hold it in place. The purport of shoe h is to alter the working-face of either of the iinfrers.

b i z' i are a number of independent weights or hammers arrangedl in the upper part of the frame directly over the former. These hammers are adapted to be raised by the former or the work placed thereon, and to fall down as the former is lowered.

It will be observed that with the machine' as thus far described, the weights will first come into contact with the raised portions of the work, and then with the lower portions or valleys. This would be apt to take too much metal out of the valleys. To avoid this I have devised the following means by which those weights or hammers which are situated above the raised ends of the work may be made to IOO come into contact with the work later than l the weights which are located above the valleys.

j j are lugs projecting forward from the machine and supporting one or more horizontal bars, t'. Upon the bars slide two or more crabs or hooks, Z, the lower biting ends of which project inwardly, and are of sufficient width preferably to grasp three or morehammers, t'. The hammers i have a shoulder in front, which is engaged by the crabs Z. In use a small lling-piece is placed upon the right and left side of the former, beneath the end hammers. As the work is raised .the end hammers will be held by the crabs in a slightly-raised position. Next, the former is lowered and the fillingpieces are removed. As the machine is now put into active operation the end hammers will come into contact with the work subsequent to the hammers above the valleys.

m is astationary upright gage-plate, affixed to the frame of the machine between the former and the hammers.

` of the fingers is placed it is locked by the eccentric lever g, and finally by the bolt d, as already described. The work is placed upon the former, resting with its rear edge against the gage-plate m. As the former is raised the work is compressed between it and the weights t', and thus it is properly set.

I claim as my inventionl. The combination, in aspring-setting machine, of a series of Weights, 1', with the block a, and with L-shaped fingers c, the working ends of which project above said block, substantially as specified.

2. The combination of block a with fingers c, and with mechanism for clamping said iingers separately against such block, substantially as specified. w

3. The combination of block a with fingers c, bolts e, and eccentric levers g, adapted to clamp the fingers against the block, substan-l tially as specified. y

4.. The combination of block a with lingers c, slotted longitudinally, and with bolts (Z c and eccentric g, substantially as specified.

5. The combination of block a with L- shaped ngers c, adapted to be clamped to the same, and with the shoes h, having downwardly-eXtending pins which t into holes in the working-faces of the fingers, substantially as specified.

6. The combination of hammers 1l with laterally-adjustable crabs Z, adapted to engage shoulders on said hammers, substantially as specied.

7. The combination, in aspring-setting ma chine, of the following elements: block a, iingers c, eccentric g, gage-plate m, hammers i, and crabs Z, substantially as specilied.

JOHN S. PESSENGER.

Witnesses: v

F. v. BRIEsEN, R. H. ROY.

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